80486DX2-66/86Box-fork
1
0
Fork 0
Code Issues Pull Requests Activity

Add IBM PC/AT 128KB Memory Expansion Option

Browse Source
This commit is contained in:
Jasmine Iwanek
2024-06-06 23:41:56 -04:00
parent 0da54a4bd8
commit ddc36d66df
1 changed files with 31 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

36
src/device/isamem.c
View File

@@ -90,11 +90,12 @@
#define ISAMEM_GENXT_CARD 1
#define ISAMEM_RAMCARD_CARD 2
#define ISAMEM_SYSTEMCARD_CARD 3
#define ISAMEM_IBMAT_CARD 4
#define ISAMEM_GENAT_CARD 5
#define ISAMEM_P5PAK_CARD 6
#define ISAMEM_A6PAK_CARD 7
#define ISAMEM_EMS5150_CARD 8
#define ISAMEM_IBMAT_128K_CARD 4
#define ISAMEM_IBMAT_CARD 5
#define ISAMEM_GENAT_CARD 6
#define ISAMEM_P5PAK_CARD 7
#define ISAMEM_A6PAK_CARD 8
#define ISAMEM_EMS5150_CARD 9
#define ISAMEM_EV159_CARD 10
#define ISAMEM_RAMPAGEXT_CARD 11
#define ISAMEM_ABOVEBOARD_CARD 12
@@ -502,6 +503,13 @@ isamem_init(const device_t *info)
tot = dev->total_size;
break;
case ISAMEM_IBMAT_128K_CARD: /* IBM PC/AT 128K Memory Expansion Option */
dev->total_size = 128;
dev->start_addr = 512;
tot = dev->total_size;
dev->flags |= FLAG_WIDE;
break;
case ISAMEM_IBMAT_CARD: /* IBM PC/AT Memory Expansion Card */
case ISAMEM_GENAT_CARD: /* Generic PC/AT Memory Expansion Card */
dev->total_size = device_get_config_int("size");
@@ -1035,6 +1043,20 @@ static const device_t mssystemcard_device = {
.config = mssystemcard_config
};
static const device_t ibmat_128k_device = {
.name = "IBM PC/AT 128KB Memory Expansion Option",
.internal_name = "ibmat_128k",
.flags = DEVICE_ISA,
.local = ISAMEM_IBMAT_128K_CARD,
.init = isamem_init,
.close = isamem_close,
.reset = NULL,
{ .available = NULL },
.speed_changed = NULL,
.force_redraw = NULL,
.config = NULL
};
static const device_config_t ibmat_config[] = {
// clang-format off
{
@@ -1939,12 +1961,16 @@ static const struct {
} boards[] = {
// clang-format off
{ &isa_none_device },
// XT Ram Expansion Cards
{ &ibmxt_device },
{ &genericxt_device },
{ &msramcard_device },
{ &mssystemcard_device },
// AT RAM Expansion Cards
{ &ibmat_128k_device },
{ &ibmat_device },
{ &genericat_device },
// EMS Cards
{ &p5pak_device },
{ &a6pak_device },
{ &ems5150_device },